acpi/acpica/nsprepkg.c

4  * Module Name: nsprepkg - Validation of package objects for predefined names
21 			   const union acpi_predefined_info *package,
45  * DESCRIPTION: Check a returned package object for the correct count and
55 	const union acpi_predefined_info *package;
64 	/* The package info for this name is in the next table entry */
66 	package = info->predefined + 1;
70 			  info->full_pathname, package->ret_info.type,
71 			  return_object->package.count));
75 	 * and trailing NULL package elements
77 	acpi_ns_remove_null_elements(info, package->ret_info.type,
80 	/* Extract package count and elements array */
82 	elements = return_object->package.elements;
83 	count = return_object->package.count;
87 	 * is the variable-length package (ACPI_PTYPE1_VAR).
90 		if (package->ret_info.type == ACPI_PTYPE1_VAR) {
102 	 * Decode the type of the expected package contents
107 	switch (package->ret_info.type) {
115 		 * The package count is fixed and there are no subpackages
117 		 * If package is too small, exit.
118 		 * If package is larger than expected, issue warning but continue
121 		    package->ret_info.count1 + package->ret_info.count2;
132 		/* Validate all elements of the returned package */
135 							package->ret_info.
137 							package->ret_info.
139 							package->ret_info.
141 							package->ret_info.
147 		 * The package count is variable, there are no subpackages, and all
152 							   package->ret_info.
164 		 * The package count is variable, there are no subpackages. There are
168 		 * Check if package is at least as large as the minimum required
170 		expected_count = package->ret_info3.count;
178 			if (i < package->ret_info3.count) {
180 				/* These are the required package elements (0, 1, or 2) */
184 							      package->
192 				/* These are the optional package elements */
196 							      package->
226 		    acpi_ns_check_package_list(info, package, elements, count);
241 		 * Count cannot be larger than the parent package length, but allow it
255 		    acpi_ns_check_package_list(info, package, elements, count);
269 		 * package instead of a Package of Packages (a common error if
276 			/* Create the new outer package and populate it */
285 			/* Update locals to point to the new package (of 1 element) */
288 			elements = return_object->package.elements;
295 		    acpi_ns_check_package_list(info, package, elements, count);
307 		/* The package must contain pairs of (UUID + type) */
316 							   package->ret_info.
333 							   package->ret_info.
351 				      package->ret_info.type));
360 	/* Error exit for the case with an incorrect package count */
374  *              package         - Pointer to package-specific info for method
375  *              elements        - Element list of parent package. All elements
387 			   const union acpi_predefined_info *package,
406 		sub_elements = sub_package->package.elements;
420 		switch (package->ret_info.type) {
428 			    package->ret_info.count1 + package->ret_info.count2;
429 			if (sub_package->package.count < expected_count) {
435 							   package->ret_info.
437 							   package->ret_info.
439 							   package->ret_info.
441 							   package->ret_info.
454 			    package->ret_info.count1 + package->ret_info.count2;
455 			if (sub_package->package.count < expected_count) {
461 							   package->ret_info.
463 							   package->ret_info.
465 							   package->ret_info.
467 							   sub_package->package.
469 							   package->ret_info.
486 			expected_count = package->ret_info2.count;
487 			if (sub_package->package.count < expected_count) {
497 							      package->
511 			expected_count = package->ret_info.count1;
512 			if (sub_package->package.count < expected_count) {
520 							   package->ret_info.
522 							   sub_package->package.
542 			 * Make sure package is large enough for the Count and is
546 			if (sub_package->package.count < expected_count) {
550 			if (sub_package->package.count <
551 			    package->ret_info.count1) {
552 				expected_count = package->ret_info.count1;
563 				expected_count = sub_package->package.count;
572 							   package->ret_info.
584 				    package->ret_info.type));
599 			      i, sub_package->package.count, expected_count));
609  *              elements            - Pointer to the package elements array
610  *              count               - Element count for the package
614  * DESCRIPTION: Check a returned package object for the correct count and
661 	/* Validate all elements of the returned package */
686  *              elements        - Pointer to the package elements array
695  * DESCRIPTION: Check that all elements of a package are of the correct object
714 	 * Up to two groups of package elements are supported by the data